I have a problem with my lighting and shadow
The second screenshot shows a correct preview, since Scene Lights and Scene World are enabled. If Scene World is disabled, an HDRI is used to light the scene preview. With Scene Lights off, your point light is ignored, hence the wrong shadow. The options are explained in the manual.


  Scene Lights
  
  Use the lights in the scene when rendering the scene.
  
  Scene World 
  
  Use the world of the scene when rendering the scene. When turned off a world will be constructed with the next options.
  
  
  HDRI Environment
  
  The environment map used to light the scene.
  Rotation
  
  The rotation of the environment on the Z axis.
  Strength
  
  Light intensity of the environment.
  Background
  
  The opacity level of a very blurred version of > the HDRI will be rendered as background in the 3D View.